docstr: The label of the links to color based on their concentration
  within a flow.
  
  The 'label' property is a string and must be specified as:
    - A string
    - A number that will be converted to a string
  
  Returns
  -------
  str
docstr_tok: ["The","label","of","the","links","to","color","based","on","their","concentration","within","a","flow",".","The","'label","'","property","is","a","string","and","must","be","specified","as",":","-","A","string","-","A","number","that","will","be","converted","to","a","string","Returns","--","--","--","-","str"]
code: def label(self):
      """
      The label of the links to color based on their concentration
      within a flow.
  
      The 'label' property is a string and must be specified as:
        - A string
        - A number that will be converted to a string
  
      Returns
      -------
      str
      """
      return self["label"]
  
file_path: plotly.py/packages/python/plotly/plotly/graph_objs/sankey/link/_colorscale.py
imports: from plotly.basedatatypes import BaseTraceHierarchyType
  import copy
label_desc: Use image node_id 7 for calling the Colorscale obj's underlying member method code with example usage: obj.label() and returns: self